Features Key: BbBore: .460-inch or .464-inchLeadpipe: Kanstul MLLeadpipe Material: Yellow BrassBell: 4-3/4-inch One Piece Hand HammeredBell Material: Yellow BrassValves: Monel Pistons1st Valve Slide Adjustment: Thumb Saddle3rd Valve Slide Adjustment: Fixed RingFeatures: One-Piece Hand Hammered Bell; Monel Valves with Metal Valve Guides; One Traditional Water Key on Main Tuning Slide; Distinctive Reverse 2nd Valve SlideCase: Double Gig BagMouthpiece Kanstul CG 3Finish: Lacquer, Silver Description Product Description The CHI1000 Series features the unmistakable look of the classic trumpet designed by Chicago craftsman a half century ago. They have that same solid feel and soaring sound. The CHI1000 Series features a 4.75-inch yellow brass bell and is available in a .460" or .464" bore.